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Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 7548620057

Certificate GIA 7548620057

Diamond specifications and retailer prices

From $3,405 SGD
As of November 4, 2026
Save $3,993 SGD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,941 SGD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548620057. Listed at 23 retailers as of November 4, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548620057
Dimensions10.00 × 5.19 × 3.12 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
Additional twinning wisps clouds pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural, Needle
Top View
10.00 mm5.19 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7548620057
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,492 SGD|Low: $3,324 SGD|High: $8,121 SGD|Avg: $4,586 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 14$3,400 SGD
Retailer 22$3,405 SGD
Retailer 1$3,492 SGD
Retailer 11$3,511 SGD
Retailer 3$3,555 SGD
Retailer 7$3,599 SGD
Retailer 12$3,686 SGD
Retailer 4$3,709 SGD
Retailer 2$3,902 SGD
Retailer 9$4,044 SGD
Retailer 20$4,209 SGD
Retailer 8$4,367 SGD
Retailer 5$4,560 SGD
Retailer 6$4,560 SGD
Retailer 17$4,563 SGD
Retailer 10$4,713 SGD
Retailer 13$4,734 SGD
Retailer 15$4,778 SGD
Retailer 16$4,861 SGD
Retailer 18$5,414 SGD
Retailer 21$6,403 SGD
Retailer 19$7,398 SGD

33 data points across 22 retailers

23 retailers$3,405 SGD to $7,398 SGD

Retailer 1
-
$3,400 SGD
Price last confirmed 20 days ago
A
Retailer 2
-
$3,405 SGD
View
A
Retailer 3
-
$3,461 SGD
View
A
Retailer 4
-
$3,492 SGD
View
A
Retailer 5
-
$3,555 SGD
View
A
Retailer 6
-
$3,599 SGD
View
A
Retailer 7
-
$3,686 SGD
View
A
Retailer 8
-
$3,703 SGD
View
A
Retailer 9
-
$3,709 SGD
View
Final sale: no returns
A
Retailer 10
-
$3,902 SGD
View
A
Retailer 11
-
$4,044 SGD
View
B+
Retailer 12
-
$4,209 SGD
View
B+
Retailer 13
-
$4,367 SGD
View
Retailer 14
-
$4,559 SGD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$4,560 SGD
View
B+
Retailer 16
-
$4,560 SGD
View
B+
Retailer 17
-
$4,563 SGD
View
B+
Retailer 18
-
$4,713 SGD
View
B+
Retailer 19
-
$4,861 SGD
View
B+
Retailer 20
-
$5,414 SGD
View
B
Retailer 21
-
$6,403 SGD
View
B
Retailer 22
-
$7,398 SGD
View
Most Expensive
NZ Jewellers
6d4e97eb-de4e-4ea4-be78-e29edad595c7 · Sep 29
$7,941 SGD
$6,217 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from $3,405 SGDSave up to $3,993 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Marquise
$3,405 SGD